Wide Compatibility: Black + Decker Models: 82300, 82310, 82312, CST500, CST800, GE600, GE800, GL250, GL310, GL360, GLC500, ST200, ST300, ST400, ST1000, ST3000, ST4000, ST4050, ST4400, ST4500, ST5000, ST6500, ST6800, ST7600 Save Money and Time: The streamlined shape allows for less drag for more efficient cuts. With the automatic feed system, the replacement spool makes the tedious work of manually winding spools by hand. Premium Quality: Made of flexible and pliable braided synthetic copolymer nylon resin that allows the line to stretch and absorb impact with surfaces Healthier and Greener - It is good for your lawn. It is superior to standard round line by producing an improved cutting action, which helps keep the lawn healthier and greener. Package includes: 6pcs trimmer line. Non-original replacement part. Warranty Disclaimer This product is not sponsored, endorsed by, or affiliated with the brands it supports, including Black-Decker